It's been a long time since Blizzard added a new string to its bow o'universes, but not so long ago a fourth franchise was on the cards. In the time-honoured tradition of fantasying up Warcraft into Starcraft, so at one point was Diablo to be sent to space, in a game that never quite made it past the unfortunate portmanteau working title 'Starblo.'(moreā?¦)